2nd Lt. Raza Alyas, (left) 88th Aerospace Medicine bioenvironmental engineer, and Senior Airman Alex Shuttleworth (right) bioenvironmental engineer, check for cyanide using a M272 Chemical Warfare Agent testing kit, as part of a base exercise scenario revolving around a threat to the base’s critical water and infrastructure, at Wright-Patterson Air Force Base, Ohio, Feb. 2, 2017. The kit detects and identifies dangerous levels of common warfare agents in raw and treated water in about seven minutes.

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Keywords: air, america, archive, armed, army, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa